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【单选题】
下列不属于数据库数据模式的是 。
A.
模式
B.
外模式
C.
内模式
D.
优化模式
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举一反三
【单选题】测量病毒大小的单位是
A.
um
B.
nm
C.
mm
D.
cm
【单选题】测量病毒大小的单位是
A.
纳米
B.
微米
C.
厘米
D.
毫米
【判断题】Elizabeth Jones wanted to build a community where different kinds of people would live together and get to know each other.
A.
正确
B.
错误
【单选题】测量病毒大小的单位是
A.
纳米
B.
毫米
C.
厘米
D.
微米
【单选题】测量病毒大小的单位是
A.
cm
B.
nm
C.
mm
D.
μm
【简答题】John Fisher, a builder, and his wife Elizabeth wanted more living space, so they left their small flat for an old 40-meter-high castle tower. They have spent five years turning it into a beautiful hom...
【单选题】测量病毒大小的单位是
A.
厘米
B.
毫米
C.
微米
D.
纳米
【单选题】Elizabeth said her husband really wanted to be cured, becauze he was required to speak publicly. What was Lionel's advice?
A.
tp be an indentured servitude
B.
to change jobs
C.
to practice more
D.
to be his patient
【简答题】A.  Lend a hand. B.  Keep your eyes open. C.  Be seen, but not be heard. D.  Make friends with your neighbors. E.  Volunteer in your community. F.  Keep your home safe and attractive. Tips for Being a...
【判断题】when you are scanning a train or bus schedule, it is helpful to use your hand or finger to focus your attention and keep your place.
A.
正确
B.
错误
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